User Manual

21
V. Trouble Shooting
AIR PROVING ERROR
• The ICECON2 controller has
lost the Tachometer signal.
• Check combustion blower
operation.
• Check tachometer sensor
operation (see section
******).
• Check ICECON2 fuses
FLAME ERROR
• The ICECON2 controller has
lost the 24 VAC on terminal
J22.
• Check gas supply
• Check ignition module for
proper operation
• Check all fail safes for
proper operation
• Check valves, manual and
solenoid, for proper
operation
• Check ICECON2 fuses
HIGH LIMIT ERROR
• The ICECON2 controller has
received a temperature
reading above the factory set
value.
•
Check main blower and dampers
for proper operation.
• Check discharge sensor for
correct attachment. Open
contacts on the Discharge
sensor terminals will cause
indication of a high limit
condition.
• Check ICECON2 fuses
LOW LIMIT ERROR
• The ICECON2 controller has
detected a temperature below
that set by the as the low
limit.
• Check unit for proper
operation.
• Check discharge sensor.
Continuity between the white
and black terminals will
return a –51 degree F signal.
• Check ICECON2 fuses
VALVE ERROR
•
The ICECON2 controller has